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IgorLugansk [536]
3 years ago
12

For f(x) = -5x + 4, what is the value of x for which f(x) = 20

Mathematics
1 answer:
Andru [333]3 years ago
4 0

Answer:

- 3.2

Step-by-step explanation:

- 5x + 4 = 20

- 5x = 20 - 4

- 5x = 16

x = 16 / - 5

x = - 3.2

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7r-5r+8=9r+8-r translate to an equation, then solve
pshichka [43]

Answer:

r=0

Step-by-step explanation:

7r-5r+8=9r+8-r

This is already an equation

Combine like terms

2r+8 = 8r+8

Subtract 2r from each side

2r-2r +8 = 8r-2r +8

8 =6r+8

Subtract 8 from each side

8-8 = 6r+8-8

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Divide by 6

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7 0
3 years ago
What are 5 consecutive even integers that add up to 0
ale4655 [162]
2a,2a+2,2a+4,2a+6,2a+8\\\\
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a=-2\\\\
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4 0
3 years ago
Read 2 more answers
There were n signers of the Declaration of Independence. The oldest was Benjamin Franklin, who was y years old. 7 is 10% of y an
zvonat [6]
Assuming n is the number of signers.

7 is 10% of y.
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3 years ago
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Solve equation<br><br> -2 • 4/5 = -3 1/2 • n
kogti [31]
16/155 = n


explanation

A linear equation is an equation of a straight line. To solve linear equations, it is important to keep the following key concepts in mind:

Maintain balance of the equation by applying the same operations to both sides of an equation

Isolate for the variable by collecting like terms

Use inverse operations to rearrange an equation


to show your work

-8/ 5 = -31/2 • n
- 8/5 = -31n/2
2(-8/5) = 2 • -31/n
-16/5 = -31n
-16/5 / -31 = -31n/31
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3 years ago
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MAXImum [283]

Answer:

2 TO 1

2:1

Step-by-step explanation:

8 0
3 years ago
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